Summary
OpenAI introduces the new Codex Cloud in a short, lighthearted demo that shows how coding tasks can keep running in the cloud after you close your laptop. A task started in a cloud environment continues on its own, and can be picked up later or added to from a phone without interrupting it.
The video highlights cloud environments, which are set up through a chat-based onboarding flow. Users point the agent at their repositories, and it researches what the project needs, including networking, environment variables, and secrets. Shared environments can let each user override secrets with their own, either inline or from a personal vault. Once published, an environment is a named snapshot that serves as a starting point for multiple separate tasks, so setup does not have to be repeated and the whole team can reuse it.
The presenter also shows voice sessions for kicking off work while away from the desk, and mentions a new code review flow. To wrap up, they ask Dot to open a pull request, test the work, and flag anything needing approval. The demo project has the Astra model generate a simulator for a laser animation device.
📺 Source: OpenAI · Published September 29, 2026
🏷️ Format: Tutorial Demo
